Bug 2395427 (CVE-2022-50281)

Summary: CVE-2022-50281 kernel: MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-09-15 15:13:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create()

In error case in bridge_platform_create after calling
platform_device_add()/platform_device_add_data()/
platform_device_add_resources(), release the failed
'pdev' or it will be leak, call platform_device_put()
to fix this problem.

Besides, 'pdev' is divided into 'pdev_wd' and 'pdev_bd',
use platform_device_unregister() to release sgi_w1
resources when xtalk-bridge registration fails.
Comment 1 Jon Moroney 2025-09-15 16:37:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091507-CVE-2022-50281-f141@gregkh/T